/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlinePartyInterface.h
Kick a user from an existing party Only admin can kick a party member
true if task was started
bool KickMember ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & LocalUserId, const [FOnlinePartyId](API\Plugins\OnlineSubsystem\FOnlinePartyId) & PartyId, const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & TargetMemberId, const [FOnKickPartyMemberComplete](API\Plugins\OnlineSubsystem\Interfaces\FOnKickPartyMemberComplete) & Delegate )